Ah yes! The jolly pursuit of Magic! What a splendid hobby! Now when it comes to the Wabbit's deck strategy I am very boring indeed as I typicaly favour the one broad strategy in my deck creating.
I favour the colour black mostly and it shows up in my collection, as most of the rares and uncommons I have are black. I generally build decks that centre around the idea of diversity in the deck. I mean in the types of spells that are played within a deck.
I build decks with prevention and offensive creatures in mind. By prevention I mean cards that are capable of dealing with multiple threats. Of course a lot of decks do this, but a lot also do not work on a very preventative strategy as the ideas in those decks usually rely on the deck combo or strategy to outpace and meet its winning conditions before its opponent's deck does the same.
I alwys include cards in my deck that are good to deal with my oppenent's cards. I typically play a combination of blue/ black, black/ red or mono black. For the blue combos I will include deck manipulation, some counter magic and some manipulation cards as well like boomerang, recoil, control magic etc.
But what I like to look for when I incluide red in my deck is a good amount of artifact kill and direct damage. I always choose my direct damage spells with using them to kill my opponent's creatures in mind. I also make sure I have a slight bit of landkill too and a stone rain played at the right time can give you that extra bit of advantage that you may need to overcome your opponent.
In creatures I always look for those that have good built in abilities. I do not always look for the more simpler creatures like Serra Angels and Sengir Vampires when I could put in a Nekrataal or Hypnotic Spectre. Those too latter creature's built in abilites really makes them two cards in one almost. You get a black bury ability with the Nekrataal, which is so handy it is not funny and you can gain some card advantage with the Hypnotic Spectre.
I do not typicaly trust combinations because I do not like the thought of losing or not having my deck perform because one part of a combo is missing or not being drawn. I prefer a deck that would not rely on only a few cards but can be competitive no matter what you draw in your first hand.
With that said. I have a link here where I have several deck listings of some of my better decks over the last 3 years. They are mostly black but there are some blue and white and red decks too.